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Wang N, Han X, Hao S, Han J, Zhou X, Sun S, Tang J, Lu Y, Wu H, Ma S, Song X, Ji G. The clinical, myopathological, and molecular characteristics of 26 Chinese patients with dysferlinopathy: a high proportion of misdiagnosis and novel variants. BMC Neurol 2022; 22:398. [PMID: 36319958 PMCID: PMC9623978 DOI: 10.1186/s12883-022-02905-w] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2022] [Revised: 09/20/2022] [Accepted: 09/27/2022] [Indexed: 11/05/2022] Open
Abstract
BACKGROUND Dysferlinopathy is an autosomal recessive muscular dystrophy caused by pathogenic variants in the dysferlin (DYSF) gene. This disease shows heterogeneous clinical phenotypes and genetic characteristics. METHODS We reviewed the clinical and pathological data as well as the molecular characteristics of 26 Chinese patients with dysferlinopathy screened by immunohistochemistry staining and pathogenic variants in DYSF genes. RESULTS Among 26 patients with dysferlinopathy, 18 patients (69.2%) presented as Limb-girdle Muscular Dystrophy Type R2 (LGMD R2), 4 (15.4%) had a phenotype of Miyoshi myopathy (MM), and 4 (15.4%) presented as asymptomatic hyperCKemia. Fifteen patients (57.7%) were originally misdiagnosed as inflammatory myopathy or other diseases. Fifteen novel variants were identified among the 40 variant sites identified in this cohort. CONCLUSION Dysferlinopathy is a clinically and genetically heterogeneous group of disorders with various phenotypes, a high proportion of novel variants, and a high rate of misdiagnosis before immunohistochemistry staining and genetic analysis.
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Affiliation(s)
- Ning Wang
- grid.452702.60000 0004 1804 3009Department of Neurology, The Second Hospital of Hebei Medical University, 050000 Shijiazhuang, Hebei People’s Republic of China ,grid.256883.20000 0004 1760 8442The Key Laboratory of Neurology (Hebei Medical University), Ministry of Education, 050000 Shijiazhuang, Hebei People’s Republic of China
| | - Xu Han
- grid.452702.60000 0004 1804 3009Department of Neurology, The Second Hospital of Hebei Medical University, 050000 Shijiazhuang, Hebei People’s Republic of China ,grid.256883.20000 0004 1760 8442The Key Laboratory of Neurology (Hebei Medical University), Ministry of Education, 050000 Shijiazhuang, Hebei People’s Republic of China
| | - Shengpu Hao
- grid.452702.60000 0004 1804 3009Department of Neurology, The Second Hospital of Hebei Medical University, 050000 Shijiazhuang, Hebei People’s Republic of China ,grid.256883.20000 0004 1760 8442The Key Laboratory of Neurology (Hebei Medical University), Ministry of Education, 050000 Shijiazhuang, Hebei People’s Republic of China
| | - Jingzhe Han
- grid.452702.60000 0004 1804 3009Department of Neurology, The Second Hospital of Hebei Medical University, 050000 Shijiazhuang, Hebei People’s Republic of China ,grid.256883.20000 0004 1760 8442The Key Laboratory of Neurology (Hebei Medical University), Ministry of Education, 050000 Shijiazhuang, Hebei People’s Republic of China
| | | | - Shuyan Sun
- grid.452702.60000 0004 1804 3009Department of Neurology, The Second Hospital of Hebei Medical University, 050000 Shijiazhuang, Hebei People’s Republic of China ,grid.256883.20000 0004 1760 8442The Key Laboratory of Neurology (Hebei Medical University), Ministry of Education, 050000 Shijiazhuang, Hebei People’s Republic of China
| | - Jin Tang
- grid.452702.60000 0004 1804 3009Department of Neurology, The Second Hospital of Hebei Medical University, 050000 Shijiazhuang, Hebei People’s Republic of China ,grid.256883.20000 0004 1760 8442The Key Laboratory of Neurology (Hebei Medical University), Ministry of Education, 050000 Shijiazhuang, Hebei People’s Republic of China
| | - Yanpeng Lu
- grid.452702.60000 0004 1804 3009Department of Neurology, The Second Hospital of Hebei Medical University, 050000 Shijiazhuang, Hebei People’s Republic of China ,grid.256883.20000 0004 1760 8442The Key Laboratory of Neurology (Hebei Medical University), Ministry of Education, 050000 Shijiazhuang, Hebei People’s Republic of China
| | - Hongran Wu
- grid.452702.60000 0004 1804 3009Department of Neurology, The Second Hospital of Hebei Medical University, 050000 Shijiazhuang, Hebei People’s Republic of China ,grid.256883.20000 0004 1760 8442The Key Laboratory of Neurology (Hebei Medical University), Ministry of Education, 050000 Shijiazhuang, Hebei People’s Republic of China
| | - Shaojuan Ma
- grid.452702.60000 0004 1804 3009Department of Neurology, The Second Hospital of Hebei Medical University, 050000 Shijiazhuang, Hebei People’s Republic of China ,grid.256883.20000 0004 1760 8442The Key Laboratory of Neurology (Hebei Medical University), Ministry of Education, 050000 Shijiazhuang, Hebei People’s Republic of China
| | - Xueqin Song
- grid.452702.60000 0004 1804 3009Department of Neurology, The Second Hospital of Hebei Medical University, 050000 Shijiazhuang, Hebei People’s Republic of China ,grid.256883.20000 0004 1760 8442The Key Laboratory of Neurology (Hebei Medical University), Ministry of Education, 050000 Shijiazhuang, Hebei People’s Republic of China
| | - Guang Ji
- grid.452702.60000 0004 1804 3009Department of Neurology, The Second Hospital of Hebei Medical University, 050000 Shijiazhuang, Hebei People’s Republic of China ,grid.256883.20000 0004 1760 8442The Key Laboratory of Neurology (Hebei Medical University), Ministry of Education, 050000 Shijiazhuang, Hebei People’s Republic of China
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Bardakov SN, Tsargush VA, Carlier PG, Nikitin SS, Kurbatov SA, Titova AA, Umakhanova ZR, Akhmedova PG, Magomedova RM, Zheleznyak IS, Emelyantsev AA, Berezhnaya EN, A.Yakovlev I, Isaev AA, Deev RV. Magnetic resonance imaging pattern variability in dysferlinopathy. ACTA MYOLOGICA : MYOPATHIES AND CARDIOMYOPATHIES : OFFICIAL JOURNAL OF THE MEDITERRANEAN SOCIETY OF MYOLOGY 2021; 40:158-171. [PMID: 35047756 PMCID: PMC8744010 DOI: 10.36185/2532-1900-059] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/20/2021] [Accepted: 12/12/2021] [Indexed: 11/25/2022]
Abstract
UNLABELLED The widespread use of magnetic resonance imaging (MRI) in the diagnosis of myopathies has made it possible to clarify the typical MRI pattern of dysferlinopathy. However, sufficient attention has not been given to the variability of MRI patterns in dysferlinopathy. MATERIALS AND METHODS Twenty-five patients with the clinical manifestations of dysferlinopathy were examined. For all patients, creatine phosphokinase levels were measured and molecular genetics were examined. In two patients, immunohistochemical examinations of muscle biopsies were performed. MRI scanning was included T2 multi-slice multi-echo, T1 weighted, T2 weighted and Short Tau Inversion Recovery T2 weighted sequences. Quantitative and semi-quantitative evaluations of fatty replacement and swelling of the muscles were undertaken. RESULTS Variability in the MRI patterns was lowest in the pelvis and leg muscles and highest in the thigh muscles. Three main types of MRI patterns were distinguished: posterior-dominant (80%), anterior-dominant (16%), and diffuse (4%). Among patients with the anterior-dominant pattern, the collagen-like variant (4%), proximal variant (4%) and pseudo-myositis (8%) were separately distinguished. CONCLUSIONS Awareness of atypical MRI patterns in dysferlinopathy is important for increasing the efficiency of routine diagnostics and optimizing the search for causative gene mutations.
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Affiliation(s)
- Sergey N. Bardakov
- S.M. Kirov Military Medical Academy, Petersburg, Russia,Correspondence Sergey N. Bardakov Department of Nephrology and Blood Purification, Department of Neurology, S.M. Kirov Military Medical Academy, 6 Lebedeva str., 194044, St. Petersburg, Russia. Tel.: +7 911 033 65 41; Fax: n/a. E-mail:
| | | | - Pierre G. Carlier
- CEA, Frédéric Joliot Institute for Life Sciences, SHFJ, Orsay, France
| | | | - Sergey A. Kurbatov
- Research Institute of Experimental Biology and Medicine, Voronezh N.N. Burdenko State Medical University, Voronezh, Russia,Semantic Hub, Moscow, Russia
| | | | | | | | | | | | | | - Ekaterina N. Berezhnaya
- CBO “I-MIO Project”, Russia,North-Western State Medical University named after I.I. Mechnikov, St. Petersburg, Russia
| | | | | | - Roman V. Deev
- North-Western State Medical University named after I.I. Mechnikov, St. Petersburg, Russia,Human Stem Cell Institute, Moscow, Russia
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3
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Salzer‐Sheelo L, Fellner A, Orenstein N, Bazak L, Lev‐El Halabi N, Daue M, Smirin‐Yosef P, Van Hout CV, Fellig Y, Ruhrman‐Shahar N, Staples J, Magal N, Shuldiner AR, Mitchell BD, Nevo Y, Pollin TI, Gonzaga‐Jauregui C, Basel‐Salmon L. Biallelic Truncating Variants in the Muscular A‐Type Lamin‐Interacting Protein (
MLIP
) Gene Cause Myopathy with Hyper‐CKemia. Eur J Neurol 2021; 29:1174-1180. [DOI: 10.1111/ene.15218] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2021] [Revised: 12/02/2021] [Accepted: 12/10/2021] [Indexed: 11/28/2022]
Affiliation(s)
- Liat Salzer‐Sheelo
- Raphael Recanati Genetics Institute, Rabin Medical Center, Beilinson Hospital Petah Tikva Israel
- Sackler Faculty of Medicine Tel Aviv University Tel Aviv Israel
| | - Avi Fellner
- Raphael Recanati Genetics Institute, Rabin Medical Center, Beilinson Hospital Petah Tikva Israel
- Department of Neurology Rabin Medical Center Beilinson Hospital Petah Tikva Israel
| | - Naama Orenstein
- Sackler Faculty of Medicine Tel Aviv University Tel Aviv Israel
- Pediatric Genetics Clinic Schneider Children’s Medical Center of Israel Petah Tikva Israel
| | - Lily Bazak
- Raphael Recanati Genetics Institute, Rabin Medical Center, Beilinson Hospital Petah Tikva Israel
| | - Noa Lev‐El Halabi
- Raphael Recanati Genetics Institute, Rabin Medical Center, Beilinson Hospital Petah Tikva Israel
| | - Melanie Daue
- Division of Endocrinology Diabetes & Nutrition Department of Medicine University of Maryland School of Medicine Baltimore MD USA
| | - Pola Smirin‐Yosef
- Genomic Bioinformatics Laboratory Department of Molecular Biology Ariel University Israel
- Felsenstein Medical Research Center Rabin Medical Center Petah Tikva Israel
| | | | - Yakov Fellig
- Department of Pathology Hadassah Medical Organization and Faculty of Medicine, Hebrew University of Jerusalem Israel
| | - Noa Ruhrman‐Shahar
- Raphael Recanati Genetics Institute, Rabin Medical Center, Beilinson Hospital Petah Tikva Israel
| | | | - Nurit Magal
- Raphael Recanati Genetics Institute, Rabin Medical Center, Beilinson Hospital Petah Tikva Israel
| | | | - Braxton D. Mitchell
- Division of Endocrinology Diabetes & Nutrition Department of Medicine University of Maryland School of Medicine Baltimore MD USA
| | - Yoram Nevo
- Sackler Faculty of Medicine Tel Aviv University Tel Aviv Israel
- Pediatric Neurology Unit Schneider Children’s Medical Center of Israel Petah Tikva Israel
| | - Toni I. Pollin
- Division of Endocrinology Diabetes & Nutrition Department of Medicine University of Maryland School of Medicine Baltimore MD USA
| | - Claudia Gonzaga‐Jauregui
- Regeneron Genetics Center Tarrytown NY USA
- International Laboratory for Human Genome Research Laboratorio Internacional de Investigación sobre el Genoma Humano Universidad Nacional Autónoma de México Juriquilla Querétaro Mexico
| | - Lina Basel‐Salmon
- Raphael Recanati Genetics Institute, Rabin Medical Center, Beilinson Hospital Petah Tikva Israel
- Sackler Faculty of Medicine Tel Aviv University Tel Aviv Israel
- Felsenstein Medical Research Center Rabin Medical Center Petah Tikva Israel
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4
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Kim DH, Jang DH, Jang JH. Incidental Severe Fatty Degeneration of the Erector Spinae in a Patient with L5-S1 Disc Extrusion Diagnosed with Limb-Girdle Muscular Dystrophy R2 Dysferin-Related. Diagnostics (Basel) 2020; 10:diagnostics10080530. [PMID: 32751317 PMCID: PMC7459781 DOI: 10.3390/diagnostics10080530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 07/20/2020] [Accepted: 07/27/2020] [Indexed: 11/16/2022] Open
Abstract
Limb-girdle muscular dystrophy type R2 dysferin-related (LGMD R2 dysferin-related), a phenotype of dysferlinopathy, usually begins with pelvic girdle weakness. A 35-year-old male presented with right leg pain for 2 weeks without a previous history of limb weakness. Magnetic resonance imaging of the lumbar spine showed disc extrusion at L5-S1 and incidental severe fatty degeneration of the lumbar erector spinae. Physical examination demonstrated no definite limb weakness. Serum creatine kinase levels were elevated. Genetic testing using a targeted gene-sequencing panel identified compound heterozygous variants NM_003494.3(DYSF) c.[1284+2T>C]; [5303G>A]. Computed tomography revealed fatty degeneration of lower-limb muscles, which was mild in the adductor muscles and severe in the gluteus minimus. Immunohistochemistry staining of the vastus lateralis showed under-expression of dysferlin. This patient was diagnosed with LGMD R2 dysferin-related. Thus, unusual fatty degeneration of the lumbar paraspinalis can be a manifestation of dysferlinopathy.
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Affiliation(s)
- Du Hwan Kim
- Department of Physical Medicine and Rehabilitation, College of Medicine, Chung-Ang University, 102 Heukseok-ro, Dongjak-gu, Seoul 06973, Korea
| | - Dae-Hyun Jang
- Department of Rehabilitation Medicine, College of Medicine, The Catholic University of Korea, Seoul 06591, Korea
| | - Ja-Hyun Jang
- Department of Laboratory Medicine and Genetics, Samsung Medical Center, Sungkyunkwan University School of Medicine, Seoul 06351, Korea
- Green Cross Genome, Yongin 16924, Korea
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5
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Shioya A, Takuma H, Takahashi T, Ishii A, Aoki M, Tamaoka A. Radiological findings in siblings with dysferlin mutation with diverse phenotype. J Neurol Sci 2020; 409:116579. [PMID: 31770675 DOI: 10.1016/j.jns.2019.116579] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2019] [Revised: 11/09/2019] [Accepted: 11/11/2019] [Indexed: 11/26/2022]
Affiliation(s)
- Ayako Shioya
- Department of Neurology, Mito Kyodo General Hospital, Tsukuba University Hospital Mito Area Medical Education Center, Ibaraki, Japan.
| | | | - Toshiaki Takahashi
- Department of Neurology and Division of Clinical Research, National Hospital Organization Sendai-Nishitaga Hospital, Miyagi, Japan
| | - Akiko Ishii
- Department of Neurology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
| | - Masashi Aoki
- Department of Neurology, Tohoku University School of Medicine, Miyagi, Japan
| | - Akira Tamaoka
- Department of Neurology, Faculty of Medicine, University of Tsukuba, Ibaraki, Japan
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6
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Diaz-Manera J, Fernandez-Torron R, LLauger J, James MK, Mayhew A, Smith FE, Moore UR, Blamire AM, Carlier PG, Rufibach L, Mittal P, Eagle M, Jacobs M, Hodgson T, Wallace D, Ward L, Smith M, Stramare R, Rampado A, Sato N, Tamaru T, Harwick B, Rico Gala S, Turk S, Coppenrath EM, Foster G, Bendahan D, Le Fur Y, Fricke ST, Otero H, Foster SL, Peduto A, Sawyer AM, Hilsden H, Lochmuller H, Grieben U, Spuler S, Tesi Rocha C, Day JW, Jones KJ, Bharucha-Goebel DX, Salort-Campana E, Harms M, Pestronk A, Krause S, Schreiber-Katz O, Walter MC, Paradas C, Hogrel JY, Stojkovic T, Takeda S, Mori-Yoshimura M, Bravver E, Sparks S, Bello L, Semplicini C, Pegoraro E, Mendell JR, Bushby K, Straub V. Muscle MRI in patients with dysferlinopathy: pattern recognition and implications for clinical trials. J Neurol Neurosurg Psychiatry 2018; 89:1071-1081. [PMID: 29735511 PMCID: PMC6166612 DOI: 10.1136/jnnp-2017-317488] [Citation(s) in RCA: 70] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/19/2017] [Revised: 03/02/2018] [Accepted: 03/26/2018] [Indexed: 11/08/2022]
Abstract
BACKGROUND AND OBJECTIVE Dysferlinopathies are a group of muscle disorders caused by mutations in the DYSF gene. Previous muscle imaging studies describe a selective pattern of muscle involvement in smaller patient cohorts, but a large imaging study across the entire spectrum of the dysferlinopathies had not been performed and previous imaging findings were not correlated with functional tests. METHODS We present cross-sectional T1-weighted muscle MRI data from 182 patients with genetically confirmed dysferlinopathies. We have analysed the pattern of muscles involved in the disease using hierarchical analysis and presented it as heatmaps. Results of the MRI scans have been correlated with relevant functional tests for each region of the body analysed. RESULTS In 181 of the 182 patients scanned, we observed muscle pathology on T1-weighted images, with the gastrocnemius medialis and the soleus being the most commonly affected muscles. A similar pattern of involvement was identified in most patients regardless of their clinical presentation. Increased muscle pathology on MRI correlated positively with disease duration and functional impairment. CONCLUSIONS The information generated by this study is of high diagnostic value and important for clinical trial development. We have been able to describe a pattern that can be considered as characteristic of dysferlinopathy. We have defined the natural history of the disease from a radiological point of view. These results enabled the identification of the most relevant regions of interest for quantitative MRI in longitudinal studies, such as clinical trials. CLINICAL TRIAL REGISTRATION NCT01676077.
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Affiliation(s)
- Jordi Diaz-Manera
- Centro de Investigación Biomédica en Red en Enfermedades Raras (CIBERER), Barcelona, Spain.,Neuromuscular Disorders Unit, Neurology Department, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Roberto Fernandez-Torron
- Neuromuscular Area, Biodonostia Health Research Institute, Neurology Service, Donostia University Hospital, Donostia-San Sebastian, Spain.,The John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Newcastle upon Tyne, UK
| | - Jaume LLauger
- Radiology Department, Universitat Autònoma de Barcelona, Hospital de la Santa Creu i Sant Pau, Barcelona, Spain
| | - Meredith K James
- The John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Newcastle upon Tyne, UK
| | - Anna Mayhew
- The John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Newcastle upon Tyne, UK
| | - Fiona E Smith
- Magnetic Resonance Centre, Institute for Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Ursula R Moore
- The John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Newcastle upon Tyne, UK
| | - Andrew M Blamire
- Magnetic Resonance Centre, Institute for Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Pierre G Carlier
- AIM & CEA NMR Laboratory, Institute of Myology, Pitié-Salpêtrière University Hospital, Paris, France
| | | | | | - Michelle Eagle
- The John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Newcastle upon Tyne, UK
| | - Marni Jacobs
- Center for Translational Science, Division of Biostatistics and Study Methodology, Children's National Health System, Washington, District of Columbia, USA.,Department of Pediatrics, Epidemiology and Biostatistics, George Washington University, Washington, District of Columbia, USA
| | - Tim Hodgson
- Magnetic Resonance Centre, Institute for Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Dorothy Wallace
- Magnetic Resonance Centre, Institute for Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Louise Ward
- Magnetic Resonance Centre, Institute for Cellular Medicine, Newcastle University, Newcastle upon Tyne, UK
| | - Mark Smith
- Department of Radiology, Nationwide Children's Hospital, Columbus, Ohio, USA
| | - Roberto Stramare
- Radiology Unit, Department of Medicine, University of Padova, Padova, Italy
| | - Alessandro Rampado
- Radiology Unit, Department of Medicine, University of Padova, Padova, Italy
| | - Noriko Sato
- Department of Radiology, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Takeshi Tamaru
- Department of Radiology, National Center Hospital, National Center of Neurology and Psychiatry, Tokyo, Japan
| | - Bruce Harwick
- Department of Radiology, CMC Mercy Charlotte, Carolinas Healthcare System Neurosciences Institute, Charlotte, North Carolina, USA
| | - Susana Rico Gala
- Department of Radiology, Hospital U. Virgen de Valme, Sevilla, Spain
| | - Suna Turk
- AIM & CEA NMR Laboratory, Institute of Myology, Pitié-Salpêtrière University Hospital, Paris, France
| | - Eva M Coppenrath
- Department of Clinical Radiology, Ludwig-Maximilians-University, Munich, Germany
| | - Glenn Foster
- Center for Clinical Imaging Research CCIR, Washington University, St. Louis, Missouri, USA
| | - David Bendahan
- Centre de Résonance, Magnétique Biologique et Médicale, Marseille, France.,Aix-Marseille Université, Marseille, France
| | | | - Stanley T Fricke
- Department of Diagnostic Imaging and Radiology, Children's National Health System, Washington, District of Columbia, USA
| | - Hansel Otero
- Department of Diagnostic Imaging and Radiology, Children's National Health System, Washington, District of Columbia, USA
| | - Sheryl L Foster
- Department of Radiology, Westmead Hospital, Westmead, New South Wales, Australia.,Faculty of Health Sciences, University of Sydney, Sydney, Australia
| | - Anthony Peduto
- Department of Radiology, Westmead Hospital, Westmead, New South Wales, Australia.,Faculty of Health Sciences, University of Sydney, Sydney, Australia
| | - Anne Marie Sawyer
- Lucas Center for Imaging, Stanford University School of Medicine, Stanford, California, USA
| | - Heather Hilsden
- The John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Newcastle upon Tyne, UK
| | - Hanns Lochmuller
- The John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Newcastle upon Tyne, UK
| | - Ulrike Grieben
- Charite Muscle Research Unit, Experimental and Clinical Research Center, A Joint Co-operation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Simone Spuler
- Charite Muscle Research Unit, Experimental and Clinical Research Center, A Joint Co-operation of the Charité Medical Faculty and the Max Delbrück Center for Molecular Medicine, Berlin, Germany
| | - Carolina Tesi Rocha
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA
| | - John W Day
- Department of Neurology and Neurological Sciences, Stanford University School of Medicine, Stanford, California, USA
| | - Kristi J Jones
- Institute for Neuroscience and Muscle Research, Children's Hospital at Westmead, University of Sydney, Sydney, New South Wales, Australia
| | - Diana X Bharucha-Goebel
- Department of Neurology, Children's National Health System, Washington, District of Columbia, USA.,National Institutes of Health (NINDS), Bethesda, Maryland, USA
| | | | - Matthew Harms
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Alan Pestronk
- Department of Neurology, Washington University School of Medicine, St. Louis, Missouri, USA
| | - Sabine Krause
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Olivia Schreiber-Katz
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Maggie C Walter
- Friedrich-Baur-Institute, Department of Neurology, Ludwig-Maximilians-University of Munich, Munich, Germany
| | - Carmen Paradas
- Neuromuscular Unit, Department of Neurology, Hospital U. Virgen del Rocío/Instituto de Biomedicina de Sevilla, Sevilla, Spain
| | - Jean-Yves Hogrel
- Institut de Myologie, AP-HP, G.H. Pitié-Salpêtrière, Paris, Île-de-France, France
| | - Tanya Stojkovic
- Institut de Myologie, AP-HP, G.H. Pitié-Salpêtrière, Paris, Île-de-France, France
| | - Shin'ichi Takeda
- Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Madoka Mori-Yoshimura
- Department of Neurology, National Center Hospital, National Center of Neurology and Psychiatry, Kodaira, Tokyo, Japan
| | - Elena Bravver
- Neurosciences Institute, Carolinas Healthcare System, Charlotte, North Carolina, USA
| | - Susan Sparks
- Neurosciences Institute, Carolinas Healthcare System, Charlotte, North Carolina, USA
| | - Luca Bello
- Department of Neurosciences, University of Padova, Padova, Italy
| | | | - Elena Pegoraro
- Department of Neurosciences, University of Padova, Padova, Italy
| | | | - Kate Bushby
- The John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Newcastle upon Tyne, UK
| | - Volker Straub
- The John Walton Muscular Dystrophy Research Centre, MRC Centre for Neuromuscular Diseases, Newcastle upon Tyne, UK
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7
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Papadopoulos C, LaforÊt P, Nectoux J, Stojkovic T, Wahbi K, Carlier RY, Carlier PG, Leonard-Louis S, Leturcq F, Romero N, Eymard B, Behin A. Hyperckemia and myalgia are common presentations of anoctamin-5-related myopathy in French patients. Muscle Nerve 2017; 56:1096-1100. [PMID: 28187523 DOI: 10.1002/mus.25608] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 01/23/2017] [Accepted: 02/07/2017] [Indexed: 01/23/2023]
Abstract
INTRODUCTION Patients with anoctamin-5 (ANO5) mutations may present not only with limb-girdle muscular dystrophy type 2L or adult-onset Miyoshi-type myopathy but also with asymptomatic hyperCKemia, exercise intolerance, or rhabdomyolysis. MATERIALS AND METHODS Data from 38 patients in France with ANO5 mutations with and without muscle weakness on first examination were compared. RESULTS Twenty patients presented without muscle weakness. Median age at symptom onset or discovery of hyperCKemia was 23 years. Creatine kinase levels ranged from 200 to 40,000 U/L. Electromyography showed a myopathic pattern in 5 patients, and muscle imaging showed involvement of posterior calf muscles in 10 patients. Mild cardiac involvement was observed in 2 patients. Sixteen patients remain free of weakness after a median follow-up period of 5 years. DISCUSSION Asymptomatic, sometimes mild hyperCKemia or exercise intolerance is a presentation of ANO5-related myopathy and may remain isolated or precede muscle weakness by many years. Muscle Nerve 56: 1096-1100, 2017.
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Affiliation(s)
- Constantinos Papadopoulos
- APHP, Centre de Référence de Pathologie Neuromusculaire Paris-Est, Institut de Myologie, GH Pitié-Salpêtrière, 47-83 Boulevard de l'Hôpital, 75013, Paris, France
| | - Pascal LaforÊt
- APHP, Centre de Référence de Pathologie Neuromusculaire Paris-Est, Institut de Myologie, GH Pitié-Salpêtrière, 47-83 Boulevard de l'Hôpital, 75013, Paris, France
| | - Juliette Nectoux
- APHP, Service de Biochimie et Génétique Moléculaire, Cochin Hospital, Paris, France
| | - Tanya Stojkovic
- APHP, Centre de Référence de Pathologie Neuromusculaire Paris-Est, Institut de Myologie, GH Pitié-Salpêtrière, 47-83 Boulevard de l'Hôpital, 75013, Paris, France
| | - Karim Wahbi
- APHP, Pitié-Salpêtrière Hospital, Myology Institute, Paris, France
| | - Robert-Yves Carlier
- Radiological Unit, Teaching Hospital R. Poincaré, University Hospital of Paris, Versailles St Quentin University, Garches, France
| | | | - Sarah Leonard-Louis
- APHP, Centre de Référence de Pathologie Neuromusculaire Paris-Est, Institut de Myologie, GH Pitié-Salpêtrière, 47-83 Boulevard de l'Hôpital, 75013, Paris, France
| | - France Leturcq
- APHP, Service de Biochimie et Génétique Moléculaire, Cochin Hospital, Paris, France
| | - Norma Romero
- Laboratoire de Pathologie Musculaire Risler, Institut de Myologie, GH Pitié-Salpêtrière, Paris, France
| | - Bruno Eymard
- APHP, Centre de Référence de Pathologie Neuromusculaire Paris-Est, Institut de Myologie, GH Pitié-Salpêtrière, 47-83 Boulevard de l'Hôpital, 75013, Paris, France
| | - Anthony Behin
- APHP, Centre de Référence de Pathologie Neuromusculaire Paris-Est, Institut de Myologie, GH Pitié-Salpêtrière, 47-83 Boulevard de l'Hôpital, 75013, Paris, France
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8
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Jin SQ, Yu M, Zhang W, Lyu H, Yuan Y, Wang ZX. Dysferlin Gene Mutation Spectrum in a Large Cohort of Chinese Patients with Dysferlinopathy. Chin Med J (Engl) 2017; 129:2287-93. [PMID: 27647186 PMCID: PMC5040013 DOI: 10.4103/0366-6999.190671] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
BACKGROUND Dysferlinopathy is caused by mutations in the dysferlin (DYSF) gene. Here, we described the genetic features of a large cohort of Chinese patients with this disease. METHODS Eighty-nine index patients were included in the study. DYSF gene analysis was performed by Sanger sequencing in 41 patients and targeted next generation sequencing (NGS) in 48 patients. Multiplex ligation-dependent probe amplification (MLPA) was performed to detect exon duplication/deletion in patients with only one pathogenic mutation. RESULTS Among the 89 index patients, 79 patients were demonstrated to carry two disease-causing (73 cases) or possibly disease-causing mutations (6 cases), including 26 patients with homozygous mutations. We identified 105 different mutations, including 59 novel ones. Notably, in 13 patients in whom only one pathogenic mutation was initially found by Sanger sequencing or NGS, 3 were further identified to carry exon deletions by MLPA. The mutations identified in this study appeared to cluster in the N-terminal region. Mutation types included missense mutations (30.06%), nonsense mutations (17.18%), frameshift mutations (30.67%), in-frame deletions (2.45%), intronic mutations (17.79%), and exonic rearrangement (1.84%). No genotype-phenotype correlation was identified. CONCLUSIONS DYSF mutations in Chinese patients clustered in the N-terminal region of the gene. Exonic rearrangements were found in 23% of patients with only one pathogenic mutation identified by Sanger sequencing or NGS. The novel mutations found in this study greatly expanded the mutational spectrum of dysferlinopathy.
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Affiliation(s)
- Su-Qin Jin
- Department of Neurology, Peking University First Hospital, Beijing 100034, China
| | - Meng Yu
- Department of Neurology, Peking University First Hospital, Beijing 100034, China
| | - Wei Zhang
- Department of Neurology, Peking University First Hospital, Beijing 100034, China
| | - He Lyu
- Department of Neurology, Peking University First Hospital, Beijing 100034, China
| | - Yun Yuan
- Department of Neurology, Peking University First Hospital, Beijing 100034, China
| | - Zhao-Xia Wang
- Department of Neurology, Peking University First Hospital, Beijing 100034, China
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9
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Fanin M, Angelini C. Progress and challenges in diagnosis of dysferlinopathy. Muscle Nerve 2016; 54:821-835. [DOI: 10.1002/mus.25367] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/04/2016] [Indexed: 01/22/2023]
Affiliation(s)
- Marina Fanin
- Department of Neurosciences; University of Padova; Biomedical Campus “Pietro d'Abano”, via Giuseppe Orus 2B 35129 Padova Italy
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10
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Jin S, Du J, Wang Z, Zhang W, Lv H, Meng L, Xiao J, Yuan Y. Heterogeneous characteristics of MRI changes of thigh muscles in patients with dysferlinopathy. Muscle Nerve 2016; 54:1072-1079. [PMID: 27251469 DOI: 10.1002/mus.25207] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Revised: 05/18/2016] [Accepted: 05/31/2016] [Indexed: 12/13/2022]
Abstract
INTRODUCTION The aim of this study was to evaluate the pattern of thigh muscle MRI changes in a large cohort of patients with dysferlinopathy. METHODS MRI of the thigh was performed in 60 patients. We correlated the scale of muscle involvement on MRI with the modified Gardner-Medwin and Walton (GM-W) scale and disease duration. We also analyzed the relationship between muscle changes and genetic mutations. RESULTS Fatty infiltration and edema were observed in 95.50% and 86.67% of patients, respectively. The hamstring muscles had the highest frequency and mean score of fatty infiltration, although a posterior-dominant pattern was found in only 56%. Edema most commonly and severely affected the quadriceps and adductor magnus muscles. Fatty infiltration score correlated positively with disease duration and GM-W scale. CONCLUSIONS The pattern of fatty infiltration was heterogeneous in dysferlinopathy patients. Muscle edema was common. Fatty infiltration can be used to assess disease progression. Muscle Nerve 54: 1072-1079, 2016.
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Affiliation(s)
- Suqin Jin
- Department of Neurology, Peking University First Hospital, 8 Xishiku St, Xicheng District, Beijing, 100034, PR. China
| | - Jing Du
- Department of Radiology, Peking University First Hospital, Beijing, 100034, China
| | - Zhaoxia Wang
- Department of Neurology, Peking University First Hospital, 8 Xishiku St, Xicheng District, Beijing, 100034, PR. China
| | - Wei Zhang
- Department of Neurology, Peking University First Hospital, 8 Xishiku St, Xicheng District, Beijing, 100034, PR. China
| | - He Lv
- Department of Neurology, Peking University First Hospital, 8 Xishiku St, Xicheng District, Beijing, 100034, PR. China
| | - Lingchao Meng
- Department of Neurology, Peking University First Hospital, 8 Xishiku St, Xicheng District, Beijing, 100034, PR. China
| | - Jiangxi Xiao
- Department of Radiology, Peking University First Hospital, Beijing, 100034, China
| | - Yun Yuan
- Department of Neurology, Peking University First Hospital, 8 Xishiku St, Xicheng District, Beijing, 100034, PR. China
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11
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Cárdenas AM, González-Jamett AM, Cea LA, Bevilacqua JA, Caviedes P. Dysferlin function in skeletal muscle: Possible pathological mechanisms and therapeutical targets in dysferlinopathies. Exp Neurol 2016; 283:246-54. [PMID: 27349407 DOI: 10.1016/j.expneurol.2016.06.026] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2016] [Revised: 06/22/2016] [Accepted: 06/23/2016] [Indexed: 12/18/2022]
Abstract
Mutations in the dysferlin gene are linked to a group of muscular dystrophies known as dysferlinopathies. These myopathies are characterized by progressive atrophy. Studies in muscle tissue from dysferlinopathy patients or dysferlin-deficient mice point out its importance in membrane repair. However, expression of dysferlin homologous proteins that restore sarcolemma repair function in dysferlinopathy animal models fail to arrest muscle wasting, therefore suggesting that dysferlin plays other critical roles in muscle function. In the present review, we discuss dysferlin functions in the skeletal muscle, as well as pathological mechanisms related to dysferlin mutations. Particular focus is presented related the effect of dysferlin on cell membrane related function, which affect its repair, vesicle trafficking, as well as Ca(2+) homeostasis. Such mechanisms could provide accessible targets for pharmacological therapies.
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Affiliation(s)
- Ana M Cárdenas
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile.
| | - Arlek M González-Jamett
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile; Programa de Anatomía y Biología del Desarrollo, ICBM, Facultad de Medicina, Departamento de Neurología y Neurocirugía, Hospital Clínico Universidad de Chile, Universidad de Chile, Santiago, Chile
| | - Luis A Cea
- Programa de Anatomía y Biología del Desarrollo, ICBM, Facultad de Medicina, Departamento de Neurología y Neurocirugía, Hospital Clínico Universidad de Chile, Universidad de Chile, Santiago, Chile
| | - Jorge A Bevilacqua
- Programa de Anatomía y Biología del Desarrollo, ICBM, Facultad de Medicina, Departamento de Neurología y Neurocirugía, Hospital Clínico Universidad de Chile, Universidad de Chile, Santiago, Chile
| | - Pablo Caviedes
- Programa de Farmacología Molecular y Clinica, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
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12
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Díaz J, Woudt L, Suazo L, Garrido C, Caviedes P, CÁrdenas AM, Castiglioni C, Bevilacqua JA. Broadening the imaging phenotype of dysferlinopathy at different disease stages. Muscle Nerve 2016; 54:203-10. [PMID: 26800485 DOI: 10.1002/mus.25045] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2015] [Revised: 01/05/2016] [Accepted: 01/12/2016] [Indexed: 01/27/2023]
Abstract
INTRODUCTION MRI characterization of dysferlinopathy has been mostly limited to the lower limbs. We aimed to broaden the MRI description of dysferlinopathy and to correlate it with objective measures of motor dysfunction. METHODS Sequential whole-body axial MRI was performed in 27 patients with genetically confirmed dysferlinopathy classified according to disease duration. Spearman correlations of fatty infiltration scores versus Motor Function Measure (MFM) were calculated. RESULTS Significant fatty infiltration was symmetrically present in early stages mainly in the posterior compartments of legs and thighs, thigh adductors, pelvic girdle, and some paravertebral muscles and the subscapularis. Later, fatty infiltration involved leg and thigh anterior compartments, arms and forearms, paravertebral, and trunk muscles. MRI infiltration score correlated positively with disease duration and negatively with MFM scale. CONCLUSIONS We expand MRI characterization of dysferlinopathy and provide evidence for use of MRI scoring combined with motor functional scales to assess the natural course of disease. Muscle Nerve, 2016 Muscle Nerve 54: 203-210, 2016.
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Affiliation(s)
- Jorge Díaz
- Centro de Imagenología, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Lisanne Woudt
- Unidad Neuromuscular, Departamento de Neurología y Neurocirugía, Hospital Clínico Universidad de Chile (HCUCH), Santos Dumont 999, 2 º piso, Sector E. Independencia, 8380456, Santiago, Chile
| | - Lionel Suazo
- Centro de Imagenología, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Cristián Garrido
- Centro de Imagenología, Hospital Clínico Universidad de Chile, Santiago, Chile
| | - Pablo Caviedes
- Programa de Farmacología Molecular y Clínica, ICBM, Facultad de Medicina, Universidad de Chile
| | - Ana M CÁrdenas
- Centro Interdisciplinario de Neurociencia de Valparaíso, Facultad de Ciencias, Universidad de Valparaíso, Valparaíso, Chile
| | - Claudia Castiglioni
- Unidad de Neurología, Departamento de Pediatría, Clínica Las Condes, Santiago, Chile
| | - Jorge A Bevilacqua
- Unidad Neuromuscular, Departamento de Neurología y Neurocirugía, Hospital Clínico Universidad de Chile (HCUCH), Santos Dumont 999, 2 º piso, Sector E. Independencia, 8380456, Santiago, Chile.,Programa Anatomía y Biología del Desarrollo, ICBM, Facultad de Medicina, Universidad de Chile, Santiago, Chile
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13
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Mashiah J, Harel A, Bitterman O, Sagi L, Gat A, Fellig Y, Ben-Shachar S, Sprecher E. Isotretinoin treatment of autosomal recessive congenital ichthyosis complicated by coexisting dysferlinopathy. Clin Exp Dermatol 2015; 41:390-3. [PMID: 26620441 DOI: 10.1111/ced.12774] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/18/2015] [Indexed: 11/25/2022]
Abstract
Consanguinity is known to be associated with an increase in the prevalence of autosomal recessive disorders such as autosomal recessive congenital ichthyosis (ARCI). ARCI often responds well to retinoid treatment. We describe a patient with ARCI who improved under isotretinoin treatment. The patient subsequently developed elevated levels of serum creatinine phosphokinase (CPK), which led to the diagnosis of a second autosomal recessive disorder, dysferlinopathy, a rare myopathy characterized by muscle weakness, decreased tendon reflexes and marked elevation of CPK levels. This report demonstrates the need for physicians to remain alert to the possible coexistence of rare and mutually relevant disorders in populations with a high rate of consanguinity.
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Affiliation(s)
- J Mashiah
- Department of Dermatology, Dana Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Pediatric Dermatology Unit, Dana Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - A Harel
- Pediatric Dermatology Unit, Dana Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - O Bitterman
- Dermatology Clinic, Nahariya Western Galilee Hospital, Nahariya, Israel
| | - L Sagi
- Pediatric Neurology Unit, Dana Children's Hospital, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
| | - A Gat
- Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel.,Department of Pathology, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - Y Fellig
- Department of Pathology, Hadassah-Hebrew University Medical Center, Jerusalem, Israel
| | - S Ben-Shachar
- Genetic Institute, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel
| | - E Sprecher
- Department of Dermatology, Dana Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Pediatric Dermatology Unit, Dana Children's Hospital, Tel Aviv Sourasky Medical Center, Tel Aviv, Israel.,Sackler Faculty of Medicine, Tel Aviv University, Tel Aviv, Israel
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14
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Touznik A, Lee JJA, Yokota T. New developments in exon skipping and splice modulation therapies for neuromuscular diseases. Expert Opin Biol Ther 2014; 14:809-19. [PMID: 24620745 DOI: 10.1517/14712598.2014.896335] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Abstract
INTRODUCTION Antisense oligonucleotide (AON) therapy is a form of treatment for genetic or infectious diseases using small, synthetic DNA-like molecules called AONs. Recent advances in the development of AONs that show improved stability and increased sequence specificity have led to clinical trials for several neuromuscular diseases. Impressive preclinical and clinical data are published regarding the usage of AONs in exon-skipping and splice modulation strategies to increase dystrophin production in Duchenne muscular dystrophy (DMD) and survival of motor neuron (SMN) production in spinal muscular atrophy (SMA). AREAS COVERED In this review, we focus on the current progress and challenges of exon-skipping and splice modulation therapies. In addition, we discuss the recent failure of the Phase III clinical trials of exon 51 skipping (drisapersen) for DMD. EXPERT OPINION The main approach of AON therapy in DMD and SMA is to rescue ('knock up' or increase) target proteins through exon skipping or exon inclusion; conversely, most conventional antisense drugs are designed to knock down (inhibit) the target. Encouraging preclinical data using this 'knock up' approach are also reported to rescue dysferlinopathies, including limb-girdle muscular dystrophy type 2B, Miyoshi myopathy, distal myopathy with anterior tibial onset and Fukuyama congenital muscular dystrophy.
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Affiliation(s)
- Aleksander Touznik
- University of Alberta, Faculty of Medicine and Dentistry, Department of Medical Genetics , Edmonton, Alberta , Canada
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15
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Abstract
Dysferlinopathies are a heterogeneous group of autosomal recessive muscle disorders resulting from defects or deficiencies in dysferlin. Reported phenotypes range from isolated hyperCKemia to muscular dystrophy. We present a 15-year-old male adolescent who was diagnosed with a dysferlinopathy after presenting with acute renal failure secondary to rhabdomyolysis.
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Affiliation(s)
- Shadé Moody
- Department of Pediatrics, Division of Child and Adolescent Neurology, University of Texas Medical School at Houston, Houston, TX 77030, USA
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16
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Blandin G, Beroud C, Labelle V, Nguyen K, Wein N, Hamroun D, Williams B, Monnier N, Rufibach LE, Urtizberea JA, Cau P, Bartoli M, Lévy N, Krahn M. UMD-DYSF, a novel locus specific database for the compilation and interactive analysis of mutations in the dysferlin gene. Hum Mutat 2011; 33:E2317-31. [PMID: 22213072 DOI: 10.1002/humu.22015] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Accepted: 12/07/2011] [Indexed: 11/05/2022]
Abstract
Mutations in the dysferlin gene (DYSF) lead to a complete or partial absence of the dysferlin protein in skeletal muscles and are at the origin of dysferlinopathies, a heterogeneous group of rare autosomal recessive inherited neuromuscular disorders. As a step towards a better understanding of the DYSF mutational spectrum, and towards possible inclusion of patients in future therapeutic clinical trials, we set up the Universal Mutation Database for Dysferlin (UMD-DYSF), a Locus-Specific Database developed with the UMD® software. The main objective of UMD-DYSF is to provide an updated compilation of mutational data and relevant interactive tools for the analysis of DYSF sequence variants, for diagnostic and research purposes. In particular, specific algorithms can facilitate the interpretation of newly identified intronic, missense- or isosemantic-exonic sequence variants, a problem encountered recurrently during genetic diagnosis in dysferlinopathies. UMD-DYSF v1.0 is freely accessible at www.umd.be/DYSF/. It contains a total of 742 mutational entries corresponding to 266 different disease-causing mutations identified in 558 patients worldwide diagnosed with dysferlinopathy. This article presents for the first time a comprehensive analysis of the dysferlin mutational spectrum based on all compiled DYSF disease-causing mutations reported in the literature to date, and using the main bioinformatics tools offered in UMD-DYSF.
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Affiliation(s)
- Gaelle Blandin
- Aix-Marseille Univ, UMR 910, Faculté de Médecine Timone, 13385, Marseille, France
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17
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Gallardo E, de Luna N, Diaz-Manera J, Rojas-García R, Gonzalez-Quereda L, Flix B, de Morrée A, van der Maarel S, Illa I. Comparison of dysferlin expression in human skeletal muscle with that in monocytes for the diagnosis of dysferlin myopathy. PLoS One 2011; 6:e29061. [PMID: 22194990 PMCID: PMC3241698 DOI: 10.1371/journal.pone.0029061] [Citation(s) in RCA: 35] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2011] [Accepted: 11/20/2011] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Dysferlinopathies are caused by mutations in the dysferlin gene (DYSF). Diagnosis is complex due to the high clinical variability of the disease and because dysferlin expression in the muscle biopsy may be secondarily reduced due to a primary defect in some other gene. Dysferlin is also expressed in peripheral blood monocytes (PBM). Studying dysferlin in monocytes is used for the diagnosis of dysferlin myopathies. The aim of the study was to determine whether dysferlin expression in PBM correlates with that in skeletal muscle. METHODOLOGY/PRINCIPAL FINDINGS Using western-blot (WB) we quantified dysferlin expression in PBM from 21 pathological controls with other myopathies in whom mutations in DYSF were excluded and from 17 patients who had dysferlinopathy and two mutations in DYSF. Results were compared with protein expression in muscle by WB and immunohistochemistry (IH). We found a good correlation between skeletal muscle and monocytes using WB. However, IH results were misleading because abnormal expression of dysferlin was also observed in 13/21 pathological controls. CONCLUSIONS/SIGNIFICANCE The analysis of dysferlin protein expression in PBM is helpful when: 1) the skeletal muscle IH pattern is abnormal or 2) when muscle WB can not be performed either because muscle sample is lacking or insufficient or because the muscle biopsy is taken from a muscle at an end-stage and it mainly consists of fat and fibrotic tissue.
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Affiliation(s)
- Eduard Gallardo
- Servei de Neurologia, Laboratori de Malalties Neuromusculars, Hospital de la Santa Creu i Sant Pau i Institut de Recerca de HSCSP, Universitat Autònoma de Barcelona and Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Barcelona, Spain
| | - Noemi de Luna
- Servei de Neurologia, Laboratori de Malalties Neuromusculars, Hospital de la Santa Creu i Sant Pau i Institut de Recerca de HSCSP, Universitat Autònoma de Barcelona and Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Barcelona, Spain
| | - Jordi Diaz-Manera
- Servei de Neurologia, Laboratori de Malalties Neuromusculars, Hospital de la Santa Creu i Sant Pau i Institut de Recerca de HSCSP, Universitat Autònoma de Barcelona and Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Barcelona, Spain
| | - Ricardo Rojas-García
- Servei de Neurologia, Laboratori de Malalties Neuromusculars, Hospital de la Santa Creu i Sant Pau i Institut de Recerca de HSCSP, Universitat Autònoma de Barcelona and Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Barcelona, Spain
| | - Lidia Gonzalez-Quereda
- Servei de Genètica, Hospital de la Santa Creu i Sant Pau i Institut de Recerca de HSCSP, Universitat Autònoma and Centro de Investigación en Red de Enfermedades Raras (CIBERER), Barcelona, Spain
| | - Bàrbara Flix
- Servei de Neurologia, Laboratori de Malalties Neuromusculars, Hospital de la Santa Creu i Sant Pau i Institut de Recerca de HSCSP, Universitat Autònoma de Barcelona and Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Barcelona, Spain
| | - Antoine de Morrée
- Department of Human Genetics, Leiden University Medical Center, Leiden, The Netherlands
| | | | - Isabel Illa
- Servei de Neurologia, Laboratori de Malalties Neuromusculars, Hospital de la Santa Creu i Sant Pau i Institut de Recerca de HSCSP, Universitat Autònoma de Barcelona and Centro de Investigación Biomédica en Red de Enfermedades Neurodegenerativas (CIBERNED), Barcelona, Spain
- * E-mail:
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18
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Hicks D, Sarkozy A, Muelas N, Köehler K, Huebner A, Hudson G, Chinnery PF, Barresi R, Eagle M, Polvikoski T, Bailey G, Miller J, Radunovic A, Hughes PJ, Roberts R, Krause S, Walter MC, Laval SH, Straub V, Lochmüller H, Bushby K. A founder mutation in Anoctamin 5 is a major cause of limb-girdle muscular dystrophy. Brain 2011; 134:171-182. [PMID: 21186264 DOI: 10.1093/brain/awq294] [Citation(s) in RCA: 148] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
The limb-girdle muscular dystrophies are a group of disorders with wide genetic and clinical heterogeneity. Recently, mutations in the ANO5 gene, which encodes a putative calcium-activated chloride channel belonging to the Anoctamin family of proteins, were identified in five families with one of two previously identified disorders, limb-girdle muscular dystrophy 2L and non-dysferlin Miyoshi muscular dystrophy. We screened a candidate group of 64 patients from 59 British and German kindreds and found the truncating mutation, c.191dupA in exon 5 of ANO5 in 20 patients, homozygously in 15 and in compound heterozygosity with other ANO5 variants in the rest. An intragenic single nucleotide polymorphism and an extragenic microsatellite marker are in linkage disequilibrium with the mutation, suggesting a founder effect in the Northern European population. We have further defined the clinical phenotype of ANO5-associated muscular dystrophy. Patients show adult onset proximal lower limb weakness with highly raised serum creatine kinase values (average 4500 IU/l) and frequent muscle atrophy and asymmetry of muscle involvement. Onset varies from the early 20 s to 50 s and the weakness is generally slowly progressive, with most patients remaining ambulant for several decades. Distal presentation is much less common but a milder degree of distal lower limb weakness is often observed. Upper limb strength is only mildly affected and cardiac and respiratory function is normal. Females appear less frequently affected. In the North of England population we have identified eight patients with ANO5 mutations, suggesting a minimum prevalence of 0.27/100,000, twice as common as dysferlinopathy. We suggest that mutations in ANO5 represent a relatively common cause of adult onset muscular dystrophy with high serum creatine kinase and that mutation screening, particularly of the common mutation c.191dupA, should be an early step in the diagnostic algorithm of adult limb-girdle muscular dystrophy patients.
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Affiliation(s)
- Debbie Hicks
- Institute of Human Genetics, Newcastle University, Newcastle upon Tyne, UK
| | - Anna Sarkozy
- Institute of Human Genetics, Newcastle University, Newcastle upon Tyne, UK
| | - Nuria Muelas
- Department of Neurology, Hospital Universitario La Fe, Valencia, Spain
| | - Katrin Köehler
- Children's Hospital, Technical University Dresden, Dresden, Germany
| | - Angela Huebner
- Children's Hospital, Technical University Dresden, Dresden, Germany
| | - Gavin Hudson
- Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
| | - Patrick F Chinnery
- Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
| | - Rita Barresi
- Muscle Immunoanalysis Unit, Newcastle upon Tyne Hospitals Trust, Newcastle, UK
| | - Michelle Eagle
- Institute of Human Genetics, Newcastle University, Newcastle upon Tyne, UK
| | - Tuomo Polvikoski
- Institute for Ageing and Health, Newcastle University, Newcastle upon Tyne, UK
| | - Geraldine Bailey
- Northern Genetics Service, Institute of Human Genetics, Newcastle upon Tyne, UK
| | - James Miller
- Department of Neurology, Royal Victoria Infirmary, Newcastle upon Tyne, UK
| | | | - Paul J Hughes
- Hurstwood Park Neurological Centre, Haywards Heath, West Sussex, UK
| | | | - Sabine Krause
- Friedrich Baur Institute, Ludwig-Maximilians University, Munich, Germany
| | - Maggie C Walter
- Friedrich Baur Institute, Ludwig-Maximilians University, Munich, Germany
| | - Steven H Laval
- Institute of Human Genetics, Newcastle University, Newcastle upon Tyne, UK
| | - Volker Straub
- Institute of Human Genetics, Newcastle University, Newcastle upon Tyne, UK
| | - Hanns Lochmüller
- Institute of Human Genetics, Newcastle University, Newcastle upon Tyne, UK
| | - Kate Bushby
- Institute of Human Genetics, Newcastle University, Newcastle upon Tyne, UK
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19
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McNeill A, Birchall D, Straub V, Goldfarb L, Reilich P, Walter MC, Schramm N, Lochmüller H, Chinnery PF. Lower limb radiology of distal myopathy due to the S60F myotilin mutation. Eur Neurol 2009; 62:161-6. [PMID: 19590214 PMCID: PMC2760969 DOI: 10.1159/000227266] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/29/2009] [Accepted: 05/04/2009] [Indexed: 11/19/2022]
Abstract
Distal myopathies are a clinically and genetically heterogenous group of disorders in which the distal limb musculature is selectively or disproportionately affected. Precisely defining specific categories is a challenge because of overlapping clinical phenotypes, making it difficult to decide which of the many known causative genes to screen in individual cases. In this study we define the distinguishing magnetic resonance imaging findings in myotilin myopathy by studying 8 genealogically unrelated cases due to the same point mutation in TTID. Proximally, the vastii, biceps femoris and semimembranosus were involved with sparing of gracilis and sartorius. Distally, soleus, gastrocnemius, tibialis anterior, extensor hallicus and extensor digitorum were involved. This pattern contrasts with other distal myopathies and provides further support for the role of imaging in the clinical investigation of muscle disease.
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Affiliation(s)
- Alisdair McNeill
- Clinical Genetics Unit, Birmingham Women's Hospital, Birmingham, UK
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Abstract
PURPOSE OF REVIEW The aim of this review is to provide an up-to-date analysis of current knowledge about limb-girdle muscular dystrophies (LGMDs). RECENT FINDINGS Over the last few years, new and interesting studies have been published on LGMD. New LGMD genes have been discovered and the clinical and genetic heterogeneity in this group of muscular dystrophies has been further enlarged by the description of new forms of LGMD. Several studies have demonstrated involvement of genes causing posttranslational modifications of alpha-dystroglycan in the pathogenesis of autosomal recessive LGMD. This has highlighted an important overlap in pathogenesis between LGMD and congenital muscular dystrophies, prompting further research. Moreover, new pathogenic mechanisms and pathways are emerging for LGMD, in particular calpainopathies, dysferlinopathies and titinopathies. Such new findings may suggest novel therapeutic approaches and future clinical trials. SUMMARY The increased understanding of the genes and pathogenic mechanism of the LGMDs will improve diagnostic processes and prognostic accuracy, and promote therapeutic strategies. European and global LGMD patient registries will increase current knowledge on natural history and facilitate translational research.
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Current world literature. Curr Opin Neurol 2008; 21:615-24. [PMID: 18769258 DOI: 10.1097/wco.0b013e32830fb782] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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